This study explores the feasibility of NaCl based magnesium phosphate cement (NaCl-MPC) composites as a solid electrolyte for energy storage applications by analyzing the physical, mechanical, hydration and electrochemical properties of composites. The results indicated that the incorporation of NaCl greatly improved the mechanical properties and ionic conductivity of composites, demonstrating enhanced electrochemical stability, making it a promising energy storage material. NaCl induced complex physical and chemical interactions within the MPC system by facilitating the filling of micropores and microcracks, providing the additional nucleation sites and converting intermediate products into struvite. NaCl also reacted chemically in the MPC system to produce small amounts of hazenite crystals. These effects ultimately led to the densification of the microstructure of MPC and significantly improved its mechanical properties. Generally, the improvement of ionic conductivity of solid electrolytes compromises their mechanical properties. However, the NaCl-MPC composites in this study showed significant improvement both in ionic conductivity and mechanical properties, highlighting their potential for advanced energy storage applications.

中文翻译：

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水合机理及其作为固态电解质在氯化钠-磷酸镁复合材料中的电位


本研究通过分析复合材料的物理、机械、水化和电化学性能，探讨了 NaCl 基磷酸镁水泥 （NaCl-MPC） 复合材料作为固体电解质用于储能应用的可行性。结果表明，NaCl 的掺入大大提高了复合材料的力学性能和离子电导率，表现出增强的电化学稳定性，使其成为一种很有前途的储能材料。NaCl 通过促进微孔和微裂纹的填充、提供额外的成核位点并将中间产物转化为鸟粪石，在 MPC 系统内诱导复杂的物理和化学相互作用。NaCl 还在 MPC 系统中发生化学反应，产生少量的黑晶石晶体。这些效应最终导致 MPC 微观结构的致密化，并显着改善了其机械性能。通常，固体电解质离子电导率的提高会影响其机械性能。然而，本研究中的 NaCl-MPC 复合材料在离子电导率和机械性能方面都显示出显着改善，突出了它们在高级储能应用中的潜力。